Afro-American Historical and Cultural Museum. ( 1981). Of color, humanitas and statehood: The Black experience in Pennsylvania over three centuries 1681-1961. Philadelphia, PA: Eleazar Associates.
2.
Asante, M.K. (1990). Kemet, Afrocentricity and knowledge. Trenton, NJ: Africa World Press.
3.
Asante, M.K., & Mattson, M.T. (1992). Historical and cultural atlas of African Americans . New York: Macmillan.
4.
Blockson, C. (1984, July). Escape from slavery: Underground Railroad . National Geographic Magazine, pp. 3-39.
5.
Breyfogle, W. (1958). Make free: The story of the Underground Railroad . Philadelphia: Lippincott.
6.
Brown, I.V. (1970). The Negro in Pennsylvania history (Pennsylvania History Studies, No. 11. University Park: Pennsylvania Historical Association.
7.
Cantor, G. (1991). Historic Black landmarks: A traveler's guide. Detroit: Visible Ink Press.
8.
Fishel, L.H., & Quarles, B. (1967). The NegroAmerican: A documentary history. Glenview, IL: Scott, Foresman.
9.
Kent, D., & Hunter, W. (Eds.). (1969). Historic Pennsylvania leaflet (No. 29. Harrisburg: Commonwealth of Pennsylvania, Pennsylvania Historical and Museum Commission.
10.
McGowan, J.A. (1977). Station master on the Underground Railroad: The life and letters of Thomas Garrett. Moylan, PA: Whimsie Press.
11.
Siebert, W.H. (1967). The Underground Railroad from slavery to freedom . New York: Russell & Russell .
12.
Smedley, R.C. (1968). History of the Underground Railroad in Chester and the neighbouring counties of Pennsylvania. New York : Negro University Press.
13.
Still, W. (1970). Underground Railroad: A record of facts, authentic narratives, letters. Chicago: Johnson.
